Convert MBOX to PST
Only use the SysInspire Thunderbird converter programme if you need to move Thunderbird emails to Gmail. It is the safest software for converting many or single Thunderbird emails to Gmail files without affecting email formatting, styles, fonts, or email headers. It may export MBOX files in a variety of formats, including EML, EMLX, Yahoo, Office 365, GMAIL, MSG, and HTML. It can also provide free trials in which customers can transfer up to 25 Thunderbird items to other formats.
Read More:- https://www.sysinspire.com/mboxconverter/